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My PC won't turn on, but the power light on the front of my computer is blinking. None of the fans inside my case are spinning. Does this mean I have to replace my motherboard, power supply, or something else?

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Sounds like your Power Supply Unit(PSU) is playing up, have you installed anything new lately like more Ram, Graphics card etc.. maybe a Stick of Ram is failing, no smell of burning from the Tower/Case? If your P.C. is no longer in warranty then disconnect it from the mains supply and then remove side panel and just take a look for and signs of damage burnt,smell of smoke etc.. if no signs of that then plug in the mains and watch and listen ofr anything strange.. continuous beeps, wurring sounds etc.. If the only thing is the front light still blinks then check on the internet via another P.C. and look for troubleshooting solutions on the make and model of your P.C. website. If still no joy you could possibly change the PSU over for a new higher WATT one, they come at reasonable prices.

Posted on Aug 26, 2010

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HP Pavilion Media Center m8200n upon turning on it only beeps, and led light blinks twice contiuously, with no signal to monitor?


Power On LED Carl?

I ask that because most Power Supply's that HP uses, have an LED on the back also.
(HiPro, Delta, and Bestec)

The LED is now working as a diagnostic LED.
(Light Emitting Diode, so stating LED light, is redundant)

The beeps you hear are BIOS Beep Codes.
The computer's way of telling you something is wrong, and an area to look into for it.

As stated, it's a Code.
One example;
3 Short beeps,...pause, 3 Short beeps,...pause, etc.

With the Power On LED blinking 2 times, then a pause; indicates,

A) Computer is dirty inside. To include Power Supply

Computer is unplugged from power, Anti-Static Procedures are FOLLOWED; and a can or two of compressed air for computers, is used to clean it out.

I have a procedure to follow if you are interested.

B) Processor (CPU) fan is not seated correctly, and/or is Not functioning, or functioning properly.

Case open, and computer on; see if the Processor fan is;
1) Spinning

2) Looks to be spinning the proper speed.

No, I don't expect you to count the Revolutions per Minute, lol!
My reference is a general one. If the Processor fan looks to be turning slowly, you'll know it

3) Processor fan spins intermittently. Spin, slow down, stop....spin, etc.

C) Thermal Paste in-between Processor, and the finned Heatsink that sits on it, has dried up.
Lost it's thermal conductivity properties.

Top of Processor, and Bottom of Heatsink; MUST be THOROUGHLY cleaned, and fresh, new Thermal Paste applied.

I have a procedure for this too.

I can guide you step by step.

Post back in a Comment.

Regards,
joecoolvette

http://h10025.www1.hp.com/ewfrf/wc/product?cc=us&lc=en&dlc=en&product=3548185

How to > Adding/Replacing Hardware > Opening the PC Case,

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00583783&tmp_task=useCategory&cc=us&dlc=en&lc=en&product=3548185

http://www.hardwaresecrets.com/article/274

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=3071621&CatId=503

Apr 03, 2013 | Computers & Internet

1 Answer

My computer won't turn on


when it is blinking red it means its in sleep mode. at that time the fan is turned off by your computer to save power. Press the power button oce again and u should have it up and running.

Aug 15, 2012 | HP Computers & Internet

1 Answer

PCV R44G, won't boot, no fans, won' turn on.


Remove the Power Cord, Open the Case and remove one of thememory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x onit with an ink pen. If it fails to boot then move the chip to the nextmemory slot and try rebooting. If it fails take the chip out and set itaside, then put the other chip in and try booting it in both slots. If itboots, just to verify that the chip set aside is bad, mark an x on it and putit into the open memory chip slot and try booting.

Apr 22, 2012 | Sony Computers & Internet

1 Answer

THERMAL OVERHEATING SHUTDOWN


1) Clean the inside of the computer. Power unplugged to computer, Anti-Static Precautions used, use a can of air, or two, to clean.
(Compressed air for computers)

2) Computer case open, computer plugged into power, turn the computer on, observe the cooling fans.

A) Processor: A processor may have it's fan sitting on top of the finned Heatsink, which sits on top of the processor,

OR, the fan may be a computer case fan in the Front of the computer, and uses a plastic tuned port to deliver air from the fan to the Processor.

In either case observe the rotation of the fan. See if it seems to be spinning at the correct speed. (RPM's)

See if it spins intermittently. Spins a few times, then slows down, or stops, and then spins again.

3) Check the Thermal Paste.
If the thermal paste in-between the top of the Processor's case, and the bottom of the Heatsink, has dried up, the Processor will overheat.

If a Thermal Pad is used, remove it, fly it at the cat like a Frisbee. They are J-u-n-k.

Clean the top of the Processor's case, and the bottom of the Heatsink, THOROUGHLY, and Properly apply fresh, new thermal paste.

For additional questions post in a Comment.

Regards,
joecoolvette

Dec 09, 2011 | E-Machines eMachines Desktop PC

2 Answers

When I turn the computer on the light is rapid blinking red and has a steady beeping sound.


hi welcome to fixya Continuous beeping can indicate that your Ram is not properly seated, check and reinsert the sticks properly into the dimm slots.
vote me if it helps you

Apr 13, 2011 | Computers & Internet

1 Answer

I hit the power button and the light blinks once, the fans will start to spin, and then nothing, no power no boot, just a quick blip of power but no power up..


You need to remove the case top and look for a lot of Dust all over the inside, especially around the CPU making sure the cpu fan is still running. This can get expensive when maintenance procedures are not thought of until late. It's not you it's everyone. With the power cord out, maybe you have a vacuuum attachment to get in there and get rid of a lot of spider webs. Then take a slightly moistened rag and complete the job. I can't guarantee your CPU fan is still alive but when you get all cleaning utensils out of the way, put the power switch on and watch for the CPU fan to spin. If not- any lights? P.S. Fan?

Apr 17, 2010 | Dell Inspiron 531s Desktop Computer

1 Answer

The yellow power led light blinks on front of the emachine w2646. The CPU Fan works. The power button will not turn the PC on or off, you just have to plug in the power cord to turn it on. The monitor just...


Did you flash the main board ??

1.) remove battery
2.) press and hold the power button for 10 - 30 seconds
3.) replace battery.
4.) when the system boots it will say press XX (e.g F2) to load defaults and continue ,, press that key.

It could also be the power button is stuck!.

find were it connects to the main boad and unplug it
bridge the 2 pins it jacks into to turn the computer on. if it works u will need to replace that button or the case.



Feb 26, 2010 | E-Machines eMachines Desktop PC

2 Answers

Yellow light on power button keeps blinking but doesn't boot.


No beeps are heard, no CPU fan is turning on, only blinking yellow light. This brand usually experiences this problem.
  1. First, check the power supply. Disconnect connectors from the board and make a jumper wire for the green wire to any black wire. If the PS fan does not spin then it's busted, else proceed below.
  2. Reconnect connectors except the one with 4 wires, 2 yellow and 2 black, then switch on. If CPU fan turns on then you have a bad processor.
  3. If the fan is still not turning on then check the USB port pins for short circuit.. disconnect it from the board and switch on.
  4. Do the same with other hardware connected to the board.
PS: The metallic casing of computers must be connected to the common ground of the power utility to protect it from stray currents that result to damage of sensitive components such as processors, memory and hard disks.

Sep 24, 2009 | Dell Dimension 5150 (DIM515MIN) PC Desktop

2 Answers

No output on Monitor


Hello, It depends on how you cleaned the computer. If you removed the card from the slot then it may not be reseated back into proper alignment. If it is onboard video then there may still be a bit of dirt across one of the chip contacts. The other option would be when you plugged the monitor cable back in, you may have accidently bent a pin on the plug. Make sure that all power to the computer is off for several minutes before disconecting the cable and then look at the cable end to see if one of the pins got bent. Carefully straighten it with fine needle nose pliers then carefully plug it back in. If this doesn't work then you may have created static electricity and blew out the video system. Hope this helps, RAC

Apr 13, 2009 | AMD (90613) PC Desktop

1 Answer

Computer truns on but will not boot up


You need to do some research here, Take the cover off before you try to start it, but keep your hands out. No turn it on, Do the fans spin, there should be at least 3. The first is usually in the center of the machine on the circuit board. It is about the diameter of a coffee cup, this is the cpu fan. The second should be on the back of the case (inside), this is the case fan and the third is in the power supply. The one in the power supply is visible from the back of the case. All 3 fans should be spinning, are they?

If all the fans spin, next check to see if you can hear the hard drive power up and start to spin.

I have a feeling your power supply is dead, but to diagnose, we need more info.
b

Dec 13, 2008 | Dell Dimension 2400 PC Desktop

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